Connection for controluser as defined in your configuration failed - Ubuntu phpmyadmin Resolve?

When i was working on my PHP project since last 1 year on my current system and phpmyadmin was working very well. but one day i was working on my prjects and electricity off suddenly and when electricity on, i start my system again and open localhost/phpmyadmin, then i found following error:

Connection for controluser as defined in your configuration failed.

I did try lot to solve. i also reboot my ubuntu 14.04 system again but i found still that issue. i was very disappointed from this issue. But when i open my PHP Laravel framework project i found bellow issue:

can't connect to local mysql server through socket '/var/run/mysqld/mysqld.sock' (2) in ubuntu

when i found above error on my browser then thought it maybe need to restart mysql service and i run following command on my terminal.

sudo service mysql start

I solve this issue but try this it can help you...